Ldpc encoding methods and apparatus

Details Ldpc encoding methods and apparatus Ldpc encoding methods and apparatus

H - Electricity

03

M

H03M 13/13 (2006.01)

Patent

CA 2672073

A flexible and relatively hardware efficient LDPC encoder is described (300). The encoder cm be implemented with a level of parallelism which is less than the full parallelism of the code structure used to control the encoding process (301). Each command of a relatively simple microcode used to describe the code structure can be stored and executed multiple times to complete the encoding of a codeword (354). Different codeword lengths can be supported using the same set of microcode instructions but with the code being implemented a different number of times depending on the lifting factor selected to be used (310). The LDPC encoder can switch between encoding codewords of different lengths, without the need to change the stored code description information, by simply changing a code lifting factor used to control the encoding processes (310). When coding codewords shorter than the maximum supported codeword length some block storage locations and/or registers may go unused (308).

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